Specification of Lab Grown Diamond Code # Grade Carat Weight Clarity Size 04A A 0.2-0.4ct VVS VS 3.0-4.0mm 06A A 0.4-0.6ct VVS VS 4.0-4.5mm 08A A 0.6-0.8ct VVS-SI1 4.0-5.0mm 08B B 0.6-0.8ct SI1-SI2 4.0-5.0mm 08C C 0.6-0.8ct SI2-I1 4.0-5.0mm 08D D 0.6-0.8ct I1-I3 4.0-5.0mm 10A A 0.8-1.0ct VVS-SI1 4.5-5.5mm 10B B 0.8-1.0ct SI1-SI2 4.5-5.5mm 10C …
也稱為 2a 型鑽石, a IIa 型是四種鑽石分類之一. 大約 1-2% 的鑽石被歸類為 IIa 類 (或 2a). 這些寶石純粹, 或幾乎純碳, 並被認為是最純淨和最有價值的. Type IIa diamonds have zero or …
如果你把實驗室培育的CVD, 高溫高壓, 和大家眼前的天然鑽石, 它們同樣晶瑩剔透, 充滿火, 看起來一模一樣. 然而, 天然鑽石的形成經過十億年或更長時間, 而培育鑽石是以天為單位形成的. Natural diamonds are formed by forces deep within …
鑽石重量: 5.02ct The carat is the international standard unit of measurement for diamonds and gemstones, 和 1 克拉等於 200 毫克或 0.2 克. 克拉重量專門用於計算鑽石重量, 僅靠克拉重量無法準確反映鑽石的視覺尺寸. We recommend considering carat weight along with …
Lab-grown diamonds are called lab-grown diamonds, which means diamonds grown in a laboratory. 現在, two common production methods are usually used in the entire lab-grown diamond market: HTP (高溫高壓) 和化學氣相沉積 (化學氣相沉積). ), although cultivated in the laboratory, the principle is the same as that of natural diamonds. …
10 small steps to teach you to understand the GIA certificate of cultivated diamonds 閱讀更多 »
